
/* Copyright (c) 2009-2017, Stefan Eilemann <eile@equalizergraphics.com>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * - Neither the name of Eyescale Software GmbH nor the names of its
 *   contributors may be used to endorse or promote products derived from this
 *   software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef EQ_PLY_MODELASSIGNER_H
#define EQ_PLY_MODELASSIGNER_H

#include "view.h"

namespace eqPly
{
/** Helper to assign models to views. */
class ModelAssigner : public eq::ConfigVisitor
{
public:
    ModelAssigner(const ModelDists& models)
        : _models(models)
        , _current(models.begin())
    {
    }

    virtual eq::VisitorResult visit(eq::View* view)
    {
        const ModelDist* model = *_current;
        static_cast<View*>(view)->setModelID(model->getID());

        ++_current;
        if (_current == _models.end())
            _current = _models.begin(); // wrap around

        return eq::TRAVERSE_CONTINUE;
    }

private:
    const ModelDists& _models;
    ModelDists::const_iterator _current;
};
}
#endif // EQ_PLY_MODELASSIGNER_H
